Answer:
They fall in love within a day and throw away their lives for eachother. From marrying Romeo without parents consent (who never knew anyways), to faking a death to get out of an arrange marriage, to killing himself believing he cant live without Juliet, then her killing herself from guilt and loneliness, to Romeos mother dying of heartbreak. Their "love" (though he fell in love with her because of her looks and she fell in love with him because his way of speaking) for eachother changed their whole lives and other lives too.
Explanation:
*read and hate the story*
*also why didn't they just run away with eachother???*